The highest Christian population is in Europe with 566 Million Christians, however, many of these people are nominally Christian. The second highest Christian population is in Africa with 516 Million Christians.
However, if North and South America are counted as one continent, they have 804 Million Christians between them.
The USA.
The United States of America has more people of Christian faith than any other in the world. Estimates show that over 250 million Americans are also Christians of some denomination. This is, by far, the greatest number of Christians in a single country - the next largest is Brazil with approximately 30% less than America, 175 million. Therefore, the United States of America has the largest population of Christians in the World.
The nation of Greece has the highest population of Christians. It is estimated that about 99.7 percent of all people in Greece are Christians.
According to Wikipedia, the countries with the highest percentage of people professing Christianity are Guernsey, the Pitcairn Islands and Vatican City (100%).
Korea
The Philippines There are an estimated 70 million Christians in China, that is out of a population of 1.3 billion.
Afghanistan is the country with the highest percentage of Muslim population.
In the U.S., 79% In the world, about 33%
The country which has the highest percentage of Catholics is the Vatican City - the percentage is at 100!
ukraine
Philippines
Philippines
Phillipines
Brazil has the second highest number of Christians in the world. France has the second highest percentage of Christians in the world. --source: Adherents.com
The Philippines There are an estimated 70 million Christians in China, that is out of a population of 1.3 billion.
Afghanistan is the country with the highest percentage of Muslim population.
No, although over 90% of the Philippines is Christian (the highest percentage of any country in the world), the country does have other religions, including Muslims and Buddhists.
In the U.S., 79% In the world, about 33%
There is no Arab nation that has the largest national percentage of Christians on either the Asian or African continents. (Philippines 92% outstrips Lebanon 41% in Asia and Equatorial Guinea 98% outstrips Egypt 10% in Africa.)
The country which has the highest percentage of Catholics is the Vatican City - the percentage is at 100!
Rwuanda
Portugal